March 12, 2008 — Sensata Technologies has introduced a “rugged” version of its 8PP3 Silicon MEMS Strain Gauge pressure sensor designed for use on construction and earth-moving equipment operating in harsh environments.
When hydraulic arms and joints operating on cranes, extensions, lifts, buckets, or shovels are not performing properly, checking the pressure sensor on a hydraulic line is often the first troubleshooting step.
“Frequently sensors are damaged in the field by the use of open ended wrenches that don’t have the benefit of torque limiters,” says Gregg Pestana, Sensata construction equipment market segment manager. “Our new 8PP3 has a significantly strengthened case that is extremely robust with respect to open-end wrench installation and removal.”
Sensata’s 8PP3 silicon MEMS pressure sensor has an operating pressure of up to 30,000 psi and is an important component in the construction industry’s trend toward more-efficient electro-hydraulic operated machinery. In these systems, pressure sensors— mounted at the hydraulic manifold—monitor the fluid pressure and load on each line and provide input for advanced on-board equipment electro-hydraulic controls.
The 8PP3 sensor features a one-piece stainless steel port that requires no internal fluid seals and is available in a variety of threaded connection styles. Built-in self-diagnostic capabilities can interface directly with equipment control systems.
Sensata Technologies’ pressure sensors and switches are used in a wide range of applications and are available in a variety of fittings, packaging materials, pressure ratings and electrical inputs/outputs.